The following discussion is an archived debate of the proposed deletion of the article below. Please do not modify it. Subsequent comments should be made on the appropriate discussion page (such as the article's talk page or in a deletion review). No further edits should be made to this page.

The result was no consensus, default to keep. This discussion has established some notability, but most of the discussion revolved around the guidelines's application rather than the subject's notability. With an inconclusive debate about how to apply the guidelines, I'm closing this discussion as no consensus, default to keep. Deryck C. 19:44, 25 May 2011 (UTC)[reply]

Mikhail Katz[edit]

Mikhail Katz (edit | talk | history | protect | delete | links | watch | logs | views) – (View log)
(Find sources: Google (books · news · scholar · free images · WP refs· FENS · JSTOR · TWL)

Not notable William M. Connolley (talk) 10:45, 18 May 2011 (UTC)[reply]

Note: This debate has been included in the list of Science-related deletion discussions. • Gene93k (talk) 13:50, 18 May 2011 (UTC)[reply]
Note: This debate has been included in the list of Academics and educators-related deletion discussions. • Gene93k (talk) 13:50, 18 May 2011 (UTC)[reply]
From the long discussion below it looks as if there is plenty to be said. Xxanthippe (talk) 23:12, 20 May 2011 (UTC).[reply]
I don't think it's fair to expect the nominator to prove a negative, namely the absence of evidence of notability. The discussion begins when some people start offering possible evidence of notability, and others try to refute it. That's what is happening below. Perchloric (talk) 03:15, 21 May 2011 (UTC)[reply]
It would be valuable if you would source your data on the h index of mathematicians. Although there is general agreement that some subjects (like neurobiology) get higher cites than others (like systematic theology), there seems to be a lack of quantitative data on such issues, and judgements about notability tend to be made on the basis of past precedent. Although h index is certainly not the only factor to be considered in assessing notability (the above average professor [1]) it does have the advantage of being objective (after making allowance for subject differences, self-cites etc.) Xxanthippe (talk) 04:37, 19 May 2011 (UTC).[reply]
  • My assertion is that "merely" being tenured at a top ranked research university and hundreds of citations in a low-citation field (in other words, being known and greatly respected among peers) is enough. This is quite different from your typical tenured prof at a middle level university who teaches 4 sections of 120 calculus students each per semester. RayTalk 13:20, 19 May 2011 (UTC)[reply]
  • I looked at his material at Mathematical Reviews. It is obvious that he is a world-class mathematician, who is publishing regularly in leading journals like Duke, GAFA, Israel JM, etc. He seems to regularly make substantial progress on many important problems, although I didn't see anything described as a breakthrough, yet. I usually contribute to bibliographies of only members of the academy of sciences, etc., but this guy seems far better than the average academic bibliography that passes AfD. (I suggested deleting a French academic's biography a few months ago, who was far less accomplished, and somebody corrected me.)  Kiefer.Wolfowitz 01:51, 23 May 2011 (UTC)[reply]
The article cited by Tkuvho was from the Notices of the American Mathematical Society, and was in the series discussing recent clever ideas (What is ... ?). The book cited by Tkuvho was written by the aforementioned Gromov.  Kiefer.Wolfowitz 09:16, 19 May 2011 (UTC)[reply]
Comment Just to clarify the "What is...?" series does not describe recent clever ideas. It describes mathematical objects that are not typically encountered in standard set of graduate courses. To quote the AMS on the subject they say The “WHAT IS...?” column carries short (one- or two-page), nontechnical articles aimed at graduate students. Each article focuses on a single mathematical object, rather than a whole theory. The Notices welcomes feedback and suggestions for topics for future columns. Messages may be sent to notices-whatis@ams.org.
Comment Thanks for the precise quotation and citation. Nonetheless, the topics are not of historical interest, but of contemporary interest, and "clever" is a fair description of a topic that is of importance and can be described briefly.  Kiefer.Wolfowitz 22:48, 20 May 2011 (UTC)[reply]
Counter-point: Contrary to Tkuvho, Berger's article never uses the word "seminal", which would have implied originality and influence. It just says that Katz's book "covers almost all the results and references for recent developments". Katz's book is a review; it's a textbook based on a course he taught. It has 24 citations in Google Scholar. That does not make it, or him, notable. It just means he has written a decent review that one of the experts in the field said is useful. Perchloric (talk) 01:49, 20 May 2011 (UTC)[reply]
There seems to be a misunderstanding of Wikipedia policy here. In Wikipedia terms, "notable" means having been noted by a sufficient number of independent sources. The purpose of this AfD is not to determine whether the subject is a good mathematician or not. Wikipedia is not an academic promotions board. The purpose of the AfD is to determine whether the person has been noted by a sufficient number of independent sources, a rather less subjective task. Xxanthippe (talk) 02:50, 20 May 2011 (UTC).[reply]
A straightforward reading of WP:PROF makes it clear that being "noted" in the sense of just being mentioned is not enough. For academics one requires significant coverage of the person themselves in reliable sources (absent in this case) or evidence of "significant impact in their scholarly discipline, broadly construed". So actually we need evidence that he is more than just a "good mathematician". Such evidence is also absent in this case, since the subject's citation rates are pretty typical of professors of mathematics at research universities. Perchloric (talk) 03:15, 21 May 2011 (UTC)[reply]
You seem to be dismissing Mikhael Gromov as a non-reliable source!?!!!  Kiefer.Wolfowitz 13:28, 21 May 2011 (UTC)[reply]
Where does Mikhael Gromov say that Katz is notable (by the WP:PROF definition, as having made a significant impact on a broadly construed area of study)? Perchloric (talk) 22:39, 22 May 2011 (UTC)[reply]
There seems to be a misunderstanding of Wikipedia policy here. In Wikipedia terms, "notable" means having been noted by a sufficient number of independent sources. The purpose of this AfD is not to determine whether the subject is a "significant" mathematician or not. Wikipedia is not an academic promotions board. The purpose of the AfD is to determine whether the person has been noted by a sufficient number of independent sources, a rather less subjective task. Xxanthippe (talk) 02:50, 20 May 2011 (UTC).[reply]
Ok, fair enough, I may have misunderstood the guidelines. I have spent some time today re-examining BLP's of mathematicians trying to educate myself about as to the norm. In most cases that I looked at they seem to be able to reference some publication for facts concerning the person's career, life history, etc. See Paul Sally for an example. Most sources for the pages I glanced at were taken from some biography or a newsletter, beginning of a book, etc. Someone, somewhere had found a reason to write about the people themselves. In the case of this page I cannot find references to verify that he is a leader of his subfield, or that his university is ranked internationally as one of the top mathematics departments. These things may be true, and much more besides but what published references exist on which to build the article? Wikipedia are not supposed to be a crystal ball. To me that suggests it would make more sense to write about him when/if he has been written about elsewhere first. Otherwise we will be left discussing our views of the importance of his works, and I suspect very few are qualified to make that assessment. Thenub314 (talk) 21:51, 20 May 2011 (UTC)[reply]
The example you give Paul Sally has a GS h index of 9, comparing like with like, less than Katz, and the personal information given seems of a minor nature (although probably not to its subject). Xxanthippe (talk) 00:08, 21 May 2011 (UTC).[reply]
I am not entirely sure I am following your point. Are you sure your comparing like with like? Are citation rates really the same in Representation theory as they are in geometry? I find it notable that by this GS h-index metric Katz comes ahead of people like Jesse Douglas, Laurent Schwartz, and on par with Ngô Bảo Châu (I had to alter some characters in his name to get any hits). To me this means either as well recognized as some Fields medalists, or there is something a bit fishy with using Google scholar as a metric. Since I am fairly certain he is not on par with fields medalists the I have to say that the use of google scholar is misleading. Which is why I advocate looking for secondary sources that have written about him. If he is really notable within his community it will show up in an article somewhere and we will be free from trying to estimate his impact ourselves. My point is singling out Paul Sally is that he has appeared in many newspaper/magazine/etc articles about him, which doesn't seem to be true of Katz. Thenub314 (talk) 02:00, 21 May 2011 (UTC)[reply]
Thenub314, you did not misunderstand the guidelines. See my response to Xxanthippe, above.Perchloric (talk) 03:15, 21 May 2011 (UTC)[reply]
Comment: Per WP:Academic, being a leader in a subfield is sufficient to establish notablity (C1). Tkuvho (talk) 03:43, 20 May 2011 (UTC)[reply]
True. But even the highest numbers uncovered so far are well below any reasonable threshold of notability. Most science/math/engineering professors at research universities are well-regarded in a sufficiently narrow area of study, with some well-cited articles (50-100 citations, ballpark) to their name. That doesn't make them all notable. Perchloric (talk) 03:15, 21 May 2011 (UTC)[reply]
Counter-point WP:Prof#C1 makes it clear that this article should be deleted. It reads "The person's research has made significant impact in their scholarly discipline, broadly construed, as demonstrated by independent reliable sources." So far all that has been provided is evidence that the subject's work has been cited, but not that he has made a significant impact on the broad field he works in. If he had, there would be independent reliable sources talking about what a significant person he was, or how significant his work was. Just being cited a few hundred times is typical for any capable research mathematician, and is no indication of notability. Perchloric (talk) 22:39, 22 May 2011 (UTC)[reply]
Note that the subject in question has actually been cited a few thousand times.TR 08:06, 23 May 2011 (UTC)[reply]
TimothyRias, you are exaggerating. I don't think this author is that notable. At any rate, there is only one academic by that name, and all of the Google Scholar hits are by him (rather than by any namesake). Tkuvho (talk) 08:18, 23 May 2011 (UTC)[reply]

I know this is a small sample, but I think it is fair to conclude that having a few papers with 50 to 100 citations is pretty normal for a math professor, and not a sign of notability. Perchloric (talk) 23:18, 22 May 2011 (UTC)[reply]

* I would be curious to know your reasons for rejecting one of the key policy guidelines. But I would also note it is not reliably sourced. As I write half of the statements in it are unsourced, while much of the rest seem to be to his own works, so primary sources not reliable secondary sources. The other reasons, that it is well written and has a lot of incoming links are not relevant, especially as a lot of the links are from references, many added by M Katz himself when he was an editor here, so a lot less value than links in the article and with COI concerns.--JohnBlackburnewordsdeeds 00:14, 24 May 2011 (UTC)[reply]
I might write an essay on this some time, but not now. One of reasons is that I see the notability guideline mostly as a pragmatic rule that had to prevent Wikipedia from becoming "skewed" in its early days. Wikipedia has now reached a size that would make this no longer and issue and safely allows us to write articles on the most obscure of subjects, as long as those are verifiable. Clearly, all inaccurate or biased statements should be removed from the article. —Ruud 08:47, 24 May 2011 (UTC)[reply]
I have refuted the above claim in my previous comments which, for reasons unclear to me, have been moved to the talk page of this AfD. My view is that Agricola44's findings on this matter are soundly based on policy and precedent. Xxanthippe (talk) 03:51, 25 May 2011 (UTC).[reply]
Help at Larry Guth would be appreciated. Tkuvho (talk) 04:15, 25 May 2011 (UTC)[reply]
Policy is not law and we are not judges. Wikipedia policies are mostly descriptive, not prescriptive. However this is somewhat moot as notability is a guideline, not policy. Now go and write some articles. —Ruud 11:39, 25 May 2011 (UTC)[reply]

Some of the deletionists here are currently ghostbusting departed quantities. Input would be appreciated. Tkuvho (talk) 16:48, 25 May 2011 (UTC)[reply]

The above discussion is preserved as an archive of the debate. Please do not modify it. Subsequent comments should be made on the appropriate discussion page (such as the article's talk page or in a deletion review). No further edits should be made to this page.